linux-kernel - Re: [PATCH v5] modpost: check for static EXPORT

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Message-ID: <CAK7LNASdhyhhqyf1wcga7UDYoo=2t-0ZaqTmQdcsFOfAR580sw@mail.gmail.com>
Date:   Thu, 8 Aug 2019 00:12:12 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     Denis Efremov <efremov@...ux.com>
Cc:     Michal Marek <michal.lkml@...kovi.net>,
        Emil Velikov <emil.l.velikov@...il.com>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v5] modpost: check for static EXPORT_SYMBOL* functions

On Thu, Aug 1, 2019 at 3:07 PM Denis Efremov <efremov@...ux.com> wrote:
>
> This patch adds a check to warn about static EXPORT_SYMBOL* functions
> during the modpost. In most of the cases, a static symbol marked for
> exporting is an odd combination that should be fixed either by deleting
> the exporting mark or by removing the static attribute and adding the
> appropriate declaration to headers.
>
> This check could help to detect the following problems:
> 1. 550113d4e9f5 ("i2c: add newly exported functions to the header, too")
> 2. 54638c6eaf44 ("net: phy: make exported variables non-static")
> 3. 98ef2046f28b ("mm: remove the exporting of totalram_pages")
> 4. 73df167c819e ("s390/zcrypt: remove the exporting of ap_query_configuration")
> 5. a57caf8c527f ("sunrpc/cache: remove the exporting of cache_seq_next")
> 6. e4e4730698c9 ("crypto: skcipher - remove the exporting of skcipher_walk_next")
> 7. 14b4c48bb1ce ("gve: Remove the exporting of gve_probe")
> 8. 9b79ee9773a8 ("scsi: libsas: remove the exporting of sas_wait_eh")
> 9. ...
>
> The build time impact is very limited and is almost at the unnoticeable
> level (< 1 sec).
>
> Acked-by: Emil Velikov <emil.l.velikov@...il.com>
> Signed-off-by: Denis Efremov <efremov@...ux.com>
> ---

Applied to linux-kbuild. Thanks.




-- 
Best Regards
Masahiro Yamada